The problem you are showing is that there is a loading problem with nUI, usually due to another addon stopping nUI's full process by erroring out.

Try nUI on its own and see if that stops that display. It should if you have the latest one.

Then slowly add in your other addons until it breaks again. That will then help identify which addon is breaking it. Once you do that and identify which ones are doing it check to see if they have been updated for 5.0.4 or 5.0.5 and test to see if they error out without nUI installed.